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Social media platforms are weird.
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It’s a pretty easy swap, especially when you aren’t worried about voltage sag.
   Convoy S21A with P2500 buck driver and KD full spectrum pink 10W 5050 emitter. Fun little light, but a little off in that the Vf of the emitter is 4V on high but it didn’t play well with the convoy buck/boost driver…. So I went with a buck. Use 2x 18350 to get well regulated performance or 1x 21700 for convenience and runtime but experience voltage sag. Either way it’s a fun light that throws well for an S21A.
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That’s actually kind of a nice blue
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The second is a zoom showing the minor secondary emission spectra, so there’s light around 400 and 675. It also shows the filter attenuates the 400+ light but doesn’t help with the <400 light so much.
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Convoy 3x21b too
  A super user took an emission spectra of one of the LEDs I use. Interesting data for sure!
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Ooh yeah that’s a goner. I wonder what happened. Usually it takes a lot of extended heat to do that and that would be hard to do given the way hank sets up his lights.
It could be anything from a driver fault to a short. Just replacing the led won’t be sufficient.
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I’m thinking those green indicator LEDs need to be purple…
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Weird color? Check
Overkill? Check
Borderline useless? Check
Low skill? Check
Right up my alley.
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Pretty straightforward. The driver is glued in, so I used debonder and pushed the driver out by pushing on the top of the driver through the switch hole with some needle nose pliers.
 I swapped out the stock emitters in an SP36 for 4 3535 sized pink emitters from KD. The output of the SP36 is pretty well matched to the pink emitters, except turbo won’t be available at a battery voltage of 3.6ish. Not perfect but still fun. 👍   
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Sure. LMK if you’re ever interested in extreme UV or other weird colors.
👍
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Heya. I have enough parts for 1 more build. LMK if you want it.
I might make some more in a month or two but I need to get enough requests on deck to have another order make sense.
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What driver? Also what color lighted switch?
Always ready to appreciate an S2..!
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You’d do best to have a driver that controls current within the stated voltage range.
In that little light I’m using a 12V boost, but it controls low enough to regulate at the low end.
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Nominal 8-10V, 2100ma, 3S3P 9090 format. 455nm.
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I’ve got 5 5050 and 20 3535. I’m more than happy to send you some at cost if you’re interested. I've also got a big 9090 sized blue emitter that I don't think I'm going to use if you're interested.
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There’s certainly a learning curve..!
I’m curious to get this in a host and would love to be able to take photometry readings on this guy.
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Outstanding! That is a very promising beam.
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Sorry for the dirty emitter. I didn’t give it a clean up after the reflow.
 First Lemmy post. Let’s see how this goes..! I got some 5050 and 3535 pink emitters from KD  They’re looking like they will be fun to work with..!